It turned out to be a legit hotel, rather than a residential building. The location is great, within walking distance to most sights in old town. Plenty of food options in the near surrounding, as well as a decent restaurant in the hotel itself (delicious food for reasonable price). Overall the hotel is good, nicely styled, perfectly clean and with nice helpful staff. A few notes to eventual buyers, that were not a problem for me, but might be a problem for somebody else:
1. if you get a room facing the road it’ll be noisy even after midnight and you’ll probably avoid opening the curtains.
2. the walls are pretty thin, so expect to hear some normal noises from neighbours
3. the hot water is with flow-through boiler, so you can’t get both high pressure and high temperature. But what it gives is perfectly fine, imo.